As of very recently it has been found
that there was a third type of sabre-toothed cat. The specimen was found a
few years ago in Florida by a couple of amateur fossil hunters. It was
not until Larry Martin, paleontologist at the University of Kansas, looked
at the specimen and eventually categorized it as being different from
Smilodon and Homotherium. At first he believed that the
skull of the cat did not belong to the rest of the skeleton, but upon
studying the specimen more carefully he realized it was a new type of
sabre-toothed cat. These findings are so recent that the cat has not been
officially given a name. The name being considered is Xenosmilus (Discover 1999).